Aad:
The One God, in His doing/acting, is called : 'the Spirit of the Lord' and 'the Word of the Lord'. Why is that?

Medini:
No act, no role, done or assumed by G-d, can be G-d unless it is a role or act not freely done or assumed by G-d - i.e., an inherent or essential act or role. If it is free, then it is ex-nihilo and, it that most basic existential dependence, cannot be G-d. If it is not free, then your "G-d" is finite in "His" essential dependence, and not G-d at all.